<aside class="main-sidebar">
    <!-- sidebar: style can be found in sidebar.less -->
    <section class="sidebar">
        <!-- Sidebar Menu -->
        <ul class="sidebar-menu" data-widget="tree">
        <li class="header">HEADER</li>
            <!-- Optionally, you can add icons to the links -->
            <li class="<%= index===0 ? 'active' : '' %>"><a href="/">  <span>首页</span></a></li>
            <li class="<%= index===1 ? 'active' : '' %>"><a href="/pro">  <span>商品管理</span></a></li>
            <!-- <li class="<%= index===2 ? 'active' : '' %>"><a href="/user">  <span>用户管理</span></a></li> -->
            <li class="<%= index===2 ? 'active' : '' %>"><a href="/user">  <span>用户管理</span></a></li>
            <!-- <li class="<%= index===3 ? 'active' : '' %>"><a href="/yuangong">  <span>员工管理</span></a></li> -->
     
        </ul>
        <!-- /.sidebar-menu -->
    </section>
    <!-- /.sidebar -->
</aside>